Why is it always like this?!?!

Ziz HCSSF gauntlet. Things get harder sure but why...why is it EVERY time I beat the 1st fire boss after kitava#1, exiting arena on opposite side closest to ledge entrance, WHY is it always a gang of enemies right there at the door AND you can't immediately go back into the arena!?!? Why has this never been fixed!?!? I literally just died to this trash setup